2002 Envoy ECAS failure fix
Just wanted to post this so anyone else with this problem doesn't go thru the headache I did. My 2002 Envoy with ECAS went on the fritz. Instead of spending a lot of money (1000's) to have the dealership fix it I went to autozone and purchased an old airshock repair kit ( they were great in the 70's) they had in the back for $14.00. Removed the compressor unit ( 2 screws ) and disconnected the air lines from it. I then cut off the brass fittings from the end of the lines and simply connected it to the t-bar connector that came in the kit with supplied connectors, applied about 60lbs of air (adjust to your desired height) and cleaned up. It took about 30 mins. Make sure you remove the fuse for the ECAS located under the hood on drivers side fuse box ( fuse 1 ). Sounds crazy but it works great and only cost $14.00.